Introduction to Guishi Ancient Seal Script: Located under the Pavilion, there are two seal-engraved stone steles separated in the middle. The steles are shaped like turtles and are the two oldest steles in Wuxi. These two steles were written in the two ancient seal scripts of "Yu Chui" and "Zhong Ding" by two famous calligraphers at that time, Ji Kang and Yuan Zi, respectively, in 767 AD. Now these two stone tablets are listed as national first-class stone carvings and regarded as national treasures.